usingSystem;usingSystem.Collections.Generic;usingSystem.Linq;usingSystem.Web;usingSystem.Runtime.Serialization.Json;usingSystem.IO;usingSystem.Text;usingSystem.Web.Script.Serialization;usingSystem.Data;namespaceMobai.KinectApp

{///

///JSON序列化和反序列化辅助类///

///

///JSON帮助类。用于将对象转换为Json格式的字符串，或者将Json的字符串转化为对象。///

public static classJsonHelper

{///

///将对象转化为Json字符串///

/// 源类型

/// 源类型实例

/// Json字符串

public static string GetJsonFromObj(T obj)

{

DataContractJsonSerializer jsonSerializer= newDataContractJsonSerializer(obj.GetType());using (MemoryStream ms = newMemoryStream())

{

jsonSerializer.WriteObject(ms, obj);returnEncoding.UTF8.GetString(ms.ToArray());

}

}///

///将Json字符串转化为对象///

/// 目标类型

/// Json字符串

/// 目标类型的一个实例

public static T GetObjFromJson(stringstrJson)

{

T obj= Activator.CreateInstance();using (MemoryStream ms = newMemoryStream(Encoding.UTF8.GetBytes(strJson)))

{

DataContractJsonSerializer jsonSerializer= newDataContractJsonSerializer(obj.GetType());return(T)jsonSerializer.ReadObject(ms);

}

}///

///将DataTable转换为JSON字符串///

/// 数据表

/// JSON字符串

public static stringGetJsonFromDataTable(DataTable dt)

{

StringBuilder JsonString= newStringBuilder();if (dt != null && dt.Rows.Count > 0)

{

JsonString.Append("{");

JsonString.Append("\"TableInfo\":[");for (int i = 0; i < dt.Rows.Count; i++)

{

JsonString.Append("{");for (int j = 0; j < dt.Columns.Count; j++)

{if (j < dt.Columns.Count - 1)

{

JsonString.Append("\"" + dt.Columns[j].ColumnName.ToString() + "\":" + "\"" + dt.Rows[i][j].ToString() + "\",");

}else if (j == dt.Columns.Count - 1)

{

JsonString.Append("\"" + dt.Columns[j].ColumnName.ToString() + "\":" + "\"" + dt.Rows[i][j].ToString() + "\"");

}

}if (i == dt.Rows.Count - 1)

{

JsonString.Append("}");

}else{

JsonString.Append("},");

}

}

JsonString.Append("]}");returnJsonString.ToString();

}else{return null;

}

}///

///将对象转化为Json字符串///

/// 源对象

/// json数据

public static string ObjToJson(this objectobj)

{

JavaScriptSerializer serialize= newJavaScriptSerializer();returnserialize.Serialize(obj);

}///

///将Json字符串转化为对象///

/// Json字符串

/// 目标对象

public static T JsonToObj(stringstrJson)

{

JavaScriptSerializer serialize= newJavaScriptSerializer();return serialize.Deserialize(strJson);

}///

///将对象转化为Json字符串(控制深度 )///

/// 源对象

/// 深度

/// json数据

public static string ObjToJson(this object obj, intrecursionDepth)

{

JavaScriptSerializer serialize= newJavaScriptSerializer();

serialize.RecursionLimit=recursionDepth;returnserialize.Serialize(obj);

}///

///将Json字符串转化为对象(控制深度 )///

/// Json字符串

/// 深度

/// 目标对象

public static T JsonToObj(string strJson, intrecursionDepth)

{

JavaScriptSerializer serialize= newJavaScriptSerializer();

serialize.RecursionLimit=recursionDepth;return serialize.Deserialize(strJson);

}///

///将DataTable转换为JSON字符串///

/// DataTable

/// json数据

public static stringDataTableToJson(DataTable dt)

{

Dictionary dic = new Dictionary();int index = 0;foreach (DataRow dr indt.Rows)

{

Dictionary result = new Dictionary();foreach (DataColumn dc indt.Columns)

{

result.Add(dc.ColumnName, dr[dc].ToString());

}

dic.Add(index.ToString(), result);

index++;

}returnObjToJson(dic);

}

}

}